Motorized projection screens are a versatile solution that allows the screen to retract back up into his casing so that the open space once occupied by a large projection surface is now available for other uses. It can be mounted in different ways. Wall projector screen applications are ideal for flat-level wall spaces. Projector ceiling mount combinations attach the projector and screen to the ceiling so that the floor space is free. This is a favorite mode of motorized projector screen installation especially for large venues such as conference rooms, sanctuaries, and banquet halls. Wall mounted projector screen applications are the most common, representing the majority of both commercial and residential electric screen projector combinations. An electric projector screen can be used for commercial and home theater applications.